Electric wall switch



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' S. S. GRADY ELECTRIC WALL SWITCH Original Filed March 2, 1923 Q M Szu%surok Patented Apr. 13, 1926.

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STEPHEN S. GRADY, OF NEWTONVILLE, MASSACHUSETTS, ASSIGNOR, BY AS-SIGNMENTS, T0 METEOR ELECTRIC CORPORATION, OF NEW YORK, N. Y., A COR-POBATION OF NEW YORK.

ELECTRIC WALL SW ITGH.

Original application filed March 2, 1923, Serial No. 622,352. Dividedand this application filed September This application is a division ofmy copending application filed March 2,1923, Ser.

No. 622,352, filed in accordance with the requirement of the PatentOffice to divide the subjectmatter of this application from said parentapplication.

My invention relates to an electric wall switch in which the contactsare operated with a quick, positive snap.

In the accompanying drawings the same reference numerals refer tosimilar parts in the several figures.

Fig. 1 is a vertical section on line 1-1 of Fig. 2 of my wall switch;

Fig. 2 is a face view of the wall switch taken on line 22 of Fig. 1.

In the illustrative embodiment of my invention my wall switch 1 ismounted in a recess 2 in the wall 8. The porcelains or insulatingmembers 4 and 5 are mounted within the metallic box 6 as is the usualconstruction. The porcelain members 4 and f are provided with transversegrooves which. when placed together, form bearings for the axle or arbor6 upon which is mounted the driving member 7 which is a lever. Thislever extends through the slot 8 in the bridge plate 9, the actuatingarm 10 of the lever being covered with insulation 11. The driving arm 12of the lever 7 is provided with a convex portion 13 which engages withthe spring arm 14, having a corresponding convex contact surface. Thisspring arm 14 is connected to, and is prefen ably a partof, the drivencontact member 12 which is also mounted upon the axle or arbor 6. Inthis form of my invention the (ontact driven member is adapted to makeand break the electrical connection between the fixed electric contacts16 and 17.

(.lnc of the wires 18 is connected to the binding post 19 and is inelectrical connection with the electrical contact 16. The other wire 20is secured by the binding screw Serial No. 739,500.

21 so as to be in electrical connection with the electrical contact 17.

-The two porcelain members 4 and 5 are secured together by the securingscrews 22 which screw into the bridge plate 9, This bridge plate isprovided with extensions 23, 23 having openings for screws'24, 2a, whichsecure the face or escutcheon plate 25, the bridge plate 9 and themetallic box 6 to the wall or other suitable support by passing throughholes in the flanges 26, 26 in said box. P

In the drawing the contacts are shown with the current on. To cut thecurrent off it is merely necessary to press down upon the end 11 of thelever 7 and cause the convex member 13 on the driving arm of said leverto move upon the convex member on the spring arm 14; of the drivenmember 15. This will then cause the two convex surfaces to snap by eachother, and will cause the contact driven member 15 to snap away from thefixed electric contacts 16 and 17 and engage with the stop 27 therebybreaking the current. To again connect the circuit it is merelyneccssary to press up on the end 11 of the lever 7, when the operationwill be reversed, and the contact driven member will spring back with asnap into contact with the fixed electrical contacts 16 and 17 and againassume the position shown in Fig. 1.

It will be seen that my electric wall switch is simple, made of fewparts, that it can be cheaply manufactured and that the electricalconnections will be made or broken by a quick positive snap.

Having thus described this invention in connection with an illustrativeembodiment thereof, to the details of which I do not desire to belimited, what is claimed as new and what is desired to secure by LettersPatent is set forth in the appended claims.

hat I claim is 1. In a wall electric switch the combinatron of an axle,two electrical contacts, a

rocking contact driven member mounted on the axle and adapted to connectsaid contacts, said rocking contact driven member being provided with a.yielding armhaving a convex operated surface, an operating le vermounted on the axle and having an actuating arm extending out from thewall switch and a driving arm provided with a convex operating surfacemounted within the wall switch adjacent to and in cooperation with theconvex actuating surface on the yielding arm of the rocking contactdriven member, the rocking of the lever being adapted to make and breakthe current in the wall switch.

2. In a wall electric switch the combination of two electric contacts, arocking contact driven member to connect said contacts, said contactdriven member being provided with a fixed convex actuated surface, andan operating lever provided with an actuating arm and a driving arm, thedriving arm provided with a convex operating surface adapted to contactwith and actuate the fixed convex surface of the rocking contact drivenmember.

In a wall electric switch the combination of two electric contacts, arocking contact driven member to connect said contacts, said contactdriven member being provided with a fixed convex spring actuatedsurface, and an operating lever provided with an actuating arm and adriving arm, the driving arm provided with a convex operating surfaceadapted to contact with and actuate the fixed convex spring surface ofthe rocking contact driven member, stops mounted on the driving arm andon the rocking contact driven member to limit the throw of thecooperating convex operating surfaces.

l. In a wall electric switch the combina tion of an axle, two electriccontacts, a rocking contact driven member mounted on the axle andadapted to connect and disconnect said contacts said rocking contactdriven member being provided with a sheet metal yielding spring armhaving a convex operating surface, an operating sheet metal levermounted on the axle and having a sheet metal actuating arm extending outfrom the wall switch and a struck up sheet metal driving'arm providedwith a convex operating surface cooperating with the convex surface ofthe sheet metal yielding spring arm.

STEPHEN S. GRADY.

